Home / 20,087.06-27,719.70-11,134.48

Finding the Fourth Proportional to 20,087.06, 27,719.70 and 11,134.48

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Solution

The fourth proportional to 20,087.06, 27,719.70 and 11,134.48 is: 15,365.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,087.06 : 27,719.70 = 11,134.48 : x
  2. Step 2: Convert to fraction form
    20,087.06/27,719.70 = 11,134.48/x
  3. Step 3: Cross multiply
    20,087.06x = 27,719.70 × 11,134.48
  4. Step 4: Simplify right side
    20,087.06x = 308,644,445.26
  5. Step 5: Solve for x
    x = 308,644,445.26/20,087.06
  6. Step 6: Final answer
    x = 15,365.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.